The is a hybrid diesel multiple unit (DMU) train type operated by East Japan Railway Company (JR East) on "resort train" services on scenic lines in Japan since October 2010. Design The HB-E300 series is based on the KiHa E200 hybrid DMU type introduced on the Koumi Line in 2007. One 2-car train is used on the Ōito Line; two 2-car trains are used on the Tsugaru and Ōminato Lines; and two 4-car trains are used on Gonō Line Resort Shirakami services, replacing earlier KiHa 48 DMU trainsets. The use of hybrid technology is designed to reduce fuel consumption by 10% compared with the existing Resort Shirakami trains, reduce NOx emissions by 60%, and reduce noise levels by 20 dB while idling at stations and by 30 dB when accelerating from standstill. Interior Seating in open saloon cars features reclining/rotating seating in 2+2 configuration with a seat pitch of . The four-car Resort Shirakami sets include compartment accommodation. 2-car Resort View Furusato The two-car train for the Ōito Line is branded . It was built by Tokyu Car Corporation in Yokohama, and delivered to Nagano in June 2010. The train entered revenue service on 2 October 2010. Formation The two-car Resort View Furusato set is formed as follows. 2-car Resort Asunaro The two 2-car trains for the Tsugaru and Ōminato Lines are branded , named after Aomori's prefectural tree, known as Asunaro in Japanese. They were built by Niigata Transys and were delivered to JR East's Aomori Depot in September 2010, entering service from 4 December 2010, coinciding with the opening of the Tōhoku Shinkansen extension to . Formation The two-car Resort Asunaro sets are formed as follows. Interior Future In November 2022, JR East announced that the Resort Asunaro sets would be remodeled for two new sightseeing trains: and . The Hinabi set is scheduled to enter service in the final quarter of 2023, and the Satono set is scheduled to enter service in the first quarter of 2024. 4-car Resort Shirakami - Aoike The four-car Resort Shirakami - Aoike train for use on the Gono Line was delivered from Tokyu Car's Yokohama factory to JR East's Akita Depot in September 2010. It entered service from 4 December 2010. Formation The four-car Resort Shirakami - Aoike set is formed as follows. 4-car Resort Shirakami - Buna The four-car Resort Shirakami - Buna train for use on the Gono Line